I can contact my T by phone whenever I wish and he will get back to me the same day. He doesn't do texts or emails which is perfectly fine for me. I much prefer to actually have a conversation with him. I detest texting (anyone, not just a T), and the problem with emails is that without voice inflection and the ability to immediately discuss ideas with the person you are corresponding with, emails can create problems that don't exist in the first place when things are interpretted wrongly.

Have you considered keeping a journal and choosing certain entries to share with your T? I do that from time to time when what's on my mind doesn't warrant an actual phone call but I want to be sure to share what's on my mind with him when I do see him. I particularly do this when the topic is one that I know is hard to verbalize for some reason.